RuPAC 2006 - List of Authors

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Cornuet, D.

Paper	Title	Page
MOHP01	Normal-Conducting Separation and Compensation Dipoles for the LHC Experimental Insertions D.Gurov, O.Kiselev, I.Morozov, A.Ogurtsov, V.Petrov, E.Ruvinsky, A.Sukhanov K.Zhilayev Budker Institute of Nuclear Physics, Novosibirsk, Russia D.Cornuet, D.Gérard, W.Kalbreier, S.Ramberger, G. de Rijk CERN, Switzerland The experimental insertions of the LHC employ normal-conducting magnets to provide for part of the beam separation and to compensate the effect of two large spectrometer dipoles. In the interaction regions IR1 for the ATLAS experiment and IR5 for the CMS experiment, each of the optical elements D1 for beam separation on either side of the experiment consist of 6 MBXW dipoles. Each magnet has a core length of 3.4 m, a large single aperture with a gap height of 63 mm and will operate in the field range up to 1.5 T. The MBXWT and MBXWS magnets are shorter versions of the MBXW magnet and will be used as vertical and horizontal compensation dipoles for the spectrometer dipoles in IR2 for the ALICE and in IR8 for the LHCb experiments respectively. The MBXWT and MBXWS have a core length of 1.5m and 0.75m respectively. Additionally on MBXW magnet serves as a main compensator for the LHCb experiment. The magnet design was done in collaboration between CERN and BINP and the dipole magnets are produced by BINP. So far all three MBXWS, all three MBXWT and thirteen of twenty-nine MBXW magnets including spares have been manufactured and delivered to CERN. The report presents the main design issues and results of the acceptance tests including mechanical, electrical and magnetic field measurements	281

Paper

Title

Page

MOHP01

Normal-Conducting Separation and Compensation Dipoles for the LHC Experimental Insertions

D.Gurov, O.Kiselev, I.Morozov, A.Ogurtsov, V.Petrov, E.Ruvinsky, A.Sukhanov K.Zhilayev
Budker Institute of Nuclear Physics, Novosibirsk, Russia

D.Cornuet, D.Gérard, W.Kalbreier, S.Ramberger, G. de Rijk
CERN, Switzerland

The experimental insertions of the LHC employ normal-conducting magnets to provide for part of the beam separation and to compensate the effect of two large spectrometer dipoles. In the interaction regions IR1 for the ATLAS experiment and IR5 for the CMS experiment, each of the optical elements D1 for beam separation on either side of the experiment consist of 6 MBXW dipoles. Each magnet has a core length of 3.4 m, a large single aperture with a gap height of 63 mm and will operate in the field range up to 1.5 T. The MBXWT and MBXWS magnets are shorter versions of the MBXW magnet and will be used as vertical and horizontal compensation dipoles for the spectrometer dipoles in IR2 for the ALICE and in IR8 for the LHCb experiments respectively. The MBXWT and MBXWS have a core length of 1.5m and 0.75m respectively. Additionally on MBXW magnet serves as a main compensator for the LHCb experiment. The magnet design was done in collaboration between CERN and BINP and the dipole magnets are produced by BINP. So far all three MBXWS, all three MBXWT and thirteen of twenty-nine MBXW magnets including spares have been manufactured and delivered to CERN. The report presents the main design issues and results of the acceptance tests including mechanical, electrical and magnetic field measurements

281

MOHP12

Permanent Magnet Quadrupole For The 1-St Tank of LINAC-4

S.Minaev, O.Sergeeva, Vl.Skachkov
SSC of Russian Federation Institute for Theoretical and Experimental Physics, Moscow

A.Lombardi, E.Sargsyan, D.Cornuet, W.Venturini
CERN, Geneva

Vic.Skachkov
NPI at MSU, Moscow

Rare-earth 60 mm diameter, 45 mm long quadrupole for the LINAC-4 focusing channel on the integrated gradient of 2.3 T is described. The thin side washers are used for tuning the quad into specified gradient integral with 0.5 % accuracy. The single washer contribution calculations are discussed. A method of the magnetic axis offset in the REPM quad decreasing down to 30 mm is discussed to exclude its compensation by the outer diameter machining before inserting into the drift tube. Nonlinearity of the field is less than 1 % in the reference range of 75% of beam aperture at the central cross-section near the quad axis. The angular quadrupole arrangement in the drift tube will be provided by machining the main groove on the quad surface in the median plane with 1 mrad accuracy. Calculations of the longitudinal gradient distribution between two closer quadrupoles showed that some percents should be added to the nominal gradient in the beginning of the LINAC-4 focusing channel because of partial field compensation.

298